2. Mazda 13B-REW Rotary (RX-7 FD)
Mazda’s RX-7 FD captured enthusiasts’ hearts in the ’90s, largely due to its unique rotary heart—the 13B-REW. This twin-rotor engine delivers a remarkably smooth, turbine-like whine that sets it apart from conventional piston-driven counterparts. As the revs soar towards its 8,000 RPM redline, the 13B emits a distinctive, high-frequency tone accompanied by a rhythmic burble from its exhaust, creating an auditory experience unlike any other. The RX-7’s rotary soundtrack is immediately recognizable, blending mechanical precision with an exotic, futuristic character that continues to captivate automotive fans decades later.